Sir Mards,
Did he happen to wire the exact same drivers as the BS in series? Or does he have them in different coil configs to make the dual woofer speakers of a similar final impedance to the single woofer ones? I'm thinking that this might be the reason for the lower perceived output, as this would drop voltage sensitivity by 3db, cancelling the gain from the increase in cone area.
Did Sir Anthony mention other reasons din why he is sticking with the sealed design? I'm thinking baka cabinet volume issue (masyado na lalaki yung kahon), or baka as a compromise since most people don't have speaker stands for the center speaker (less interaction/anomalies with a portless design).
I'm basing my observation on the SVS center channel, since it's sealed the sensitivity is below 85 db.
Heya Angelo,
With everything else being the same, a ported speaker should gain output around the tuned port/enclosure resonance frequency. This can be used to extend the speaker's frequency response, raise spl, or a mixture of both.
However, the more limited frequency response of a sealed speaker will naturally measure lower in terms of sensitivity (typically measured with pink noise), but may not be as weak as expected in terms of output spl in actual HT use (where the input signal has a different spectral content... in this case, it's bandwidth limited). The SCS-02 should output significantly in excess of the rated 84.5dB with 2.83V, if the feed frequencies are above ~100Hz.
This also explains how most HTIB systems can get loud enough despite the low wattage and low speaker sensitivity.
